Abu Dhabi's hotel occupancy rates increased by ten per cent in the first five months of this year, which could be of interest to those looking at buying in Dubai.Figures released by the Abu Dhabi Tourism Authority (ADTA) revealed that there were 866,501 guests in the city between January and June, a large increase on the same time last year.Furthermore, the city is moving closer to its annual target of getting two million visitors with a hotel occupancy rate of 71 per cent achieved so far, reports Gulf News.Alex Kyriakidis, global managing director for tourism, hospitality and leisure at Deloitte & Touche in the Middle East, told the news provider that figures are on the rise."But even so, we saw the occupancy going up to 67 per cent in the first quarter of 2011 compared to the 55 per cent occupancy in the same period last year for Abu Dhabi hotels," he explained.Earlier this week, the city's Al Ain site was named on the Unesco World Heritage List.